What is another word for "capriccio"?

Roget's Thesaurus (1911) lists these synonyms for "capriccio": and, arbitrary, blow, boutade, brain, camel, caprice, capricious, captious, chase, cold, contrary, crotchet, crotchety, deuce, eccentric, erratic, escapade, fad, fanciful, fancy, fantastic, fast, fickle, fit, fitful, flimflam, foolish, freak, freakish, frivolous, full, giddy, gnat, have, head, him, hot, humor, humorsome.